[    1.819222] ip (256) used greatest stack depth: 12392 bytes left
[    2.142704] ip (278) used greatest stack depth: 12360 bytes left
[    3.412514] ip (384) used greatest stack depth: 12344 bytes left
[    8.882585] ip (786) used greatest stack depth: 12064 bytes left
[   55.138654] netem: version 1.3
[  599.802773] tc (12618) used greatest stack depth: 11936 bytes left